diff --git a/S2OJ/1461/1461.cpp b/S2OJ/1461/1461.cpp
new file mode 100644
index 00000000..033d5727
--- /dev/null
+++ b/S2OJ/1461/1461.cpp
@@ -0,0 +1,82 @@
+#include <iostream>
+#include <algorithm>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+const int N = 45,
+          D = 1e5 + 5;
+const int mod = 1e9 + 7;
+
+int n, d, r[N], f[N][N][N * N], ans;
+int fac[D], inv[D];
+
+int binpow(int a, int b) {
+    int res = 1;
+    a %= mod;
+    while (b) {
+        if (b & 1) res = 1ll * res * a % mod;
+        a = 1ll * a * a % mod;
+        b >>= 1;
+    }
+    return res;
+}
+
+inline int C(int n, int m) {
+    return 1ll * fac[n] * inv[m] % mod * inv[n - m] % mod;
+}
+
+int main() {
+    std::ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    // factorial
+    fac[0] = 1;
+    for (int i = 1; i <= 100000; i++) {
+        fac[i] = 1ll * fac[i - 1] * i % mod;
+    }
+
+    // inverse
+    inv[100000] = binpow(fac[100000], mod - 2);
+
+    for (int i = 99999; i >= 0; i--)
+        inv[i] = 1ll * inv[i + 1] * (i + 1) % mod;
+
+    // main
+    cin >> n >> d;
+
+    for (int i = 1; i <= n; i++) {
+        cin >> r[i];
+    }
+
+    std::sort(r + 1, r + 1 + n);
+
+    f[0][0][0] = 1;
+
+    for (int i = 0; i <= n; i++) {
+        for (int j = 0; j <= i; j++) {
+            for (int k = 0; k <= 40 * 40; k++) {
+                int t = r[i + 1];
+
+                if (j >= 1) {
+                    f[i + 1][j][k + t] = (f[i + 1][j][k + t] + 1ll * f[i][j][k] * 2 * j) % mod;
+                }
+
+                if (j >= 2) {
+                    f[i + 1][j - 1][k + t * 2 - 1] = (f[i + 1][j - 1][k + t * 2 - 1] + 1ll * f[i][j][k] * j * (j - 1)) % mod;
+                }
+
+                f[i + 1][j + 1][k + 1] = (f[i + 1][j + 1][k + 1] + f[i][j][k]) % mod;
+            }
+        }
+    }
+
+    for (int i = 0; i <= std::min(d, 40 * 40); i++) {
+        ans = (ans + 1ll * C(d - i + n, n) * f[n][1][i] % mod) % mod;
+    }
+
+    cout << ans << endl;
+
+    return 0;
+}
diff --git a/S2OJ/1461/data/problem.conf b/S2OJ/1461/data/problem.conf
new file mode 100644
index 00000000..99fb89ce
--- /dev/null
+++ b/S2OJ/1461/data/problem.conf
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d801f4c2cad46f8e3b417fe0000c22c9b75cfe7ff786f00a68bb8f36eac08d99
+size 182
diff --git a/S2OJ/1461/data/shooter1.in b/S2OJ/1461/data/shooter1.in
new file mode 100644
index 00000000..91cf739b
--- /dev/null
+++ b/S2OJ/1461/data/shooter1.in
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1098a762fa2f09c9ce93f2e15647ee7e5ce901893f216de9cc5b0b06c366c2db
+size 15
diff --git a/S2OJ/1461/data/shooter1.out b/S2OJ/1461/data/shooter1.out
new file mode 100644
index 00000000..d3cb9933
--- /dev/null
+++ b/S2OJ/1461/data/shooter1.out
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:77230171f17a01512ec67c9796c349ba8f3cdf731905c077396384628e5bbd47
+size 6
diff --git a/S2OJ/1461/data/shooter2.in b/S2OJ/1461/data/shooter2.in
new file mode 100644
index 00000000..9cf75d89
--- /dev/null
+++ b/S2OJ/1461/data/shooter2.in
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:14e36a13ce84ce22bdbfb6645f5196aab723819f3fcfe426bef7adc105ea869b
+size 15
diff --git a/S2OJ/1461/data/shooter2.out b/S2OJ/1461/data/shooter2.out
new file mode 100644
index 00000000..ae5e961f
--- /dev/null
+++ b/S2OJ/1461/data/shooter2.out
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:eac49b0badacd9a2b90dda6621d141162732bf83418d0d76cc4c422f28eb4f1d
+size 4
diff --git a/S2OJ/1461/data/shooter3.in b/S2OJ/1461/data/shooter3.in
new file mode 100644
index 00000000..4fc73e2f
--- /dev/null
+++ b/S2OJ/1461/data/shooter3.in
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:287624d71fb2dd2c54a10ce93def18e0a706ea1e0f5eb2946ba579a44364f85f
+size 67
diff --git a/S2OJ/1461/data/shooter3.out b/S2OJ/1461/data/shooter3.out
new file mode 100644
index 00000000..56081310
--- /dev/null
+++ b/S2OJ/1461/data/shooter3.out
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f337392b1ed58c07bb1dd1a278d4bdc4d352ef25131b2a6608e288bed3417b57
+size 9
diff --git a/S2OJ/1461/data/shooter4.in b/S2OJ/1461/data/shooter4.in
new file mode 100644
index 00000000..94371b9d
--- /dev/null
+++ b/S2OJ/1461/data/shooter4.in
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6f48bdbc1256072d899a813e90bc1aece293b56196b2b10b4c930f48c41f0bfe
+size 66
diff --git a/S2OJ/1461/data/shooter4.out b/S2OJ/1461/data/shooter4.out
new file mode 100644
index 00000000..64e2f89f
--- /dev/null
+++ b/S2OJ/1461/data/shooter4.out
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bebb74e885042e396383107fa417bc89728eb316eb8aef35bf5e9adade0ce27b
+size 10
diff --git a/S2OJ/1461/data/shooter5.in b/S2OJ/1461/data/shooter5.in
new file mode 100644
index 00000000..2d2a393f
--- /dev/null
+++ b/S2OJ/1461/data/shooter5.in
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e8316d9f0c88425471d3ffce68cfbb702bcab73b187b53a516eb7575adec898e
+size 122
diff --git a/S2OJ/1461/data/shooter5.out b/S2OJ/1461/data/shooter5.out
new file mode 100644
index 00000000..325d2075
--- /dev/null
+++ b/S2OJ/1461/data/shooter5.out
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6ea2b459665735d052fdd4f776088a5951d77a870c29a48205809cbd3c8ec468
+size 9
diff --git a/S2OJ/1461/data/shooter6.in b/S2OJ/1461/data/shooter6.in
new file mode 100644
index 00000000..b170488a
--- /dev/null
+++ b/S2OJ/1461/data/shooter6.in
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b39d9f5c749d3ac232d1a8d67723edb30e83a9bcd5527630f22b2956d35a0027
+size 126
diff --git a/S2OJ/1461/data/shooter6.out b/S2OJ/1461/data/shooter6.out
new file mode 100644
index 00000000..d5591f13
--- /dev/null
+++ b/S2OJ/1461/data/shooter6.out
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4b16818914836c8de75ddebd24ffbf420b215ab5bbabdbeb5b7807c43d77f457
+size 10